Method 13, MACRS Alternative Depreciation
You can use the MACRS alternative depreciation method for these categories of property:
Tangible property used outside the U.S.
Property that is tax exempt.
Property that is tax exempt and bond financed.
Property that is imported from a foreign country for which an executive order is in effect because the country maintains trade restrictions or engages in other discriminatory acts.
Property for which you have made an alternative MACRS election.
If you use the MACRS Alternative depreciation method, you must indicate the inception-to-date (I), current period (P), or remaining life (R) method of computation. You must also indicate a mid-month, half-year, or mid-quarter convention.